Four different malicious frameworks designed to attack air-gapped networks were detected in the first half of 2020 alone, bringing the total number of such toolkits to 17 and offering adversaries a pathway to cyber espionage and exfiltrate classified information. “All frameworks are designed to perform some form of espionage, [and] all the frameworks used USB drives as the physical transmission
Source: Researches Detail 17 Malicious Frameworks Used to Attack Air-Gapped Networks